Medical research

How the small intestine defends itself against bacteria

Researchers at the University of Gothenburg have been studying the mucus involved in defending the intestines and airways against infection for more than 30 years. To date, their work has focused very much on the large intestine, ...

Dentistry

Improved mineralized material can restore tooth enamel

Scientists have perfected hydroxyapatite, a material for mineralizing bones and teeth. By adding a complex of amino acids to hydroxyapatite, they were able to form a dental coating that replicates the composition and microstructure ...

Neuroscience

Surprising culprit worsens stroke, TBI damage

In the aftermath of a stroke or TBI, a group of amino acids that typically support brain function contribute significantly to the brain destruction that can follow both these injuries, scientists report.

Diseases, Conditions, Syndromes

Researchers discover 'weak spot' across major COVID-19 variants

Researchers at the University of British Columbia have discovered a key vulnerability across all major variants of the SARS-CoV-2 virus, including the recently emerged BA.1 and BA.2 Omicron subvariants.

Medical research

A new approach to fighting the Marburg virus

A research team led by Kyoto University is attempting to take the Marburg virus by its horns using recently gained knowledge of its core structure.

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Microscopy

Microscopy is the technical field of using microscopes to view samples or objects. There are three well-known branches of microscopy, optical, electron and scanning probe microscopy.

Optical and electron microscopy involve the diffraction, reflection, or refraction of electromagnetic radiation/electron beam interacting with the subject of study, and the subsequent collection of this scattered radiation in order to build up an image. This process may be carried out by wide-field irradiation of the sample (for example standard light microscopy and transmission electron microscopy) or by scanning of a fine beam over the sample (for example confocal laser scanning microscopy and scanning electron microscopy). Scanning probe microscopy involves the interaction of a scanning probe with the surface or object of interest. The development of microscopy revolutionized biology and remains an essential tool in that science, along with many others including materials science and numerous engineering disciplines.

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